DOI: 10.1002/2016GL068669
论文题名: Streaming potential modeling in fractured rock: Insights into the identification of hydraulically active fractures
作者: Roubinet D. ; Linde N. ; Jougnot D. ; Irving J.
刊名: Geophysical Research Letters
ISSN: 0094-9546
EISSN: 1944-9277
出版年: 2016
卷: 43, 期: 10 起始页码: 4937
结束页码: 4944
语种: 英语
英文关键词: discrete-dual-porosity approach
; fracture characterization
; fracture-matrix fluid exchanges
; heterogeneous fractured media
; numerical modeling
; self-potential method
Scopus关键词: Complex networks
; Fracture
; Geophysics
; Media streaming
; Membranes
; Numerical methods
; Numerical models
; Porosity
; Dual porosity
; Fracture characterization
; Fracture matrix
; Fractured media
; Self-potential method
; Flow of fluids
英文摘要: Numerous field experiments suggest that the self-potential (SP) geophysical method may allow for the detection of hydraulically active fractures and provide information about fracture properties. However, a lack of suitable numerical tools for modeling streaming potentials in fractured media prevents quantitative interpretation and limits our understanding of how the SP method can be used in this regard. To address this issue, we present a highly efficient two-dimensional discrete-dual-porosity approach for solving the fluid flow and associated self-potential problems in fractured rock. Our approach is specifically designed for complex fracture networks that cannot be investigated using standard numerical methods. We then simulate SP signals associated with pumping conditions for a number of examples to show that (i) accounting for matrix fluid flow is essential for accurate SP modeling and (ii) the sensitivity of SP to hydraulically active fractures is intimately linked with fracture-matrix fluid interactions. This implies that fractures associated with strong SP amplitudes are likely to be hydraulically conductive, attracting fluid flow from the surrounding matrix. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84971228801&doi=10.1002%2f2016GL068669&partnerID=40&md5=1f6b4a0ea313955b87b1148bc8bcc2d5
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10509
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Applied and Environmental Geophysics Group, Institute of Earth Sciences, University of Lausanne, Lausanne, Switzerland
Recommended Citation:
Roubinet D.,Linde N.,Jougnot D.,et al. Streaming potential modeling in fractured rock: Insights into the identification of hydraulically active fractures[J]. Geophysical Research Letters,2016-01-01,43(10).